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perf metricgroup: Support adding metrics for system PMUs 

Currently adding metrics for core- or uncore-based events matched by CPUID
is supported.

Extend this for system events.

Signed-off-by: John Garry <john.garry@huawei.com>
Acked-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kim Phillips <kim.phillips@amd.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linuxarm@huawei.com
Link: http://lore.kernel.org/lkml/1607080216-36968-10-git-send-email-john.garry@huawei.com
[ Reorder 'struct metricgroup_add_iter_data' field to avoid alignment holes ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
zero-sugar-mainline-defconfig
John Garry 2020-12-04 19:10:15 +08:00 committed by Arnaldo Carvalho de Melo
parent a36fadb17c
commit be335ec28e
1 changed files with 60 additions and 6 deletions
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66
tools/perf/util/metricgroup.c
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@ -415,6 +415,12 @@ static bool match_metric(const char *n, const char *list)
return false;
}
static bool match_pe_metric(struct pmu_event *pe, const char *metric)
{
return match_metric(pe->metric_group, metric) ||
match_metric(pe->metric_name, metric);
}
struct mep {
struct rb_node nd;
const char *name;
@ -757,6 +763,16 @@ int __weak arch_get_runtimeparam(struct pmu_event *pe __maybe_unused)
return 1;
}
struct metricgroup_add_iter_data {
struct list_head *metric_list;
const char *metric;
struct metric **m;
struct expr_ids *ids;
int *ret;
bool *has_match;
bool metric_no_group;
};
static int __add_metric(struct list_head *metric_list,
struct pmu_event *pe,
bool metric_no_group,
@ -866,10 +882,11 @@ static int __add_metric(struct list_head *metric_list,
return 0;
}
#define map_for_each_event(__pe, __idx, __map) \
for (__idx = 0, __pe = &__map->table[__idx]; \
__pe->name || __pe->metric_group || __pe->metric_name; \
__pe = &__map->table[++__idx])
#define map_for_each_event(__pe, __idx, __map) \
if (__map) \
for (__idx = 0, __pe = &__map->table[__idx]; \
__pe->name || __pe->metric_group || __pe->metric_name; \
__pe = &__map->table[++__idx])
#define map_for_each_metric(__pe, __idx, __map, __metric) \
map_for_each_event(__pe, __idx, __map) \
@ -1037,6 +1054,29 @@ static int add_metric(struct list_head *metric_list,
return ret;
}
static int metricgroup__add_metric_sys_event_iter(struct pmu_event *pe,
void *data)
{
struct metricgroup_add_iter_data *d = data;
int ret;
if (!match_pe_metric(pe, d->metric))
return 0;
ret = add_metric(d->metric_list, pe, d->metric_no_group, d->m, NULL, d->ids);
if (ret)
return ret;
ret = resolve_metric(d->metric_no_group,
d->metric_list, NULL, d->ids);
if (ret)
return ret;
*(d->has_match) = true;
return *d->ret;
}
static int metricgroup__add_metric(const char *metric, bool metric_no_group,
struct strbuf *events,
struct list_head *metric_list,
@ -1067,6 +1107,22 @@ static int metricgroup__add_metric(const char *metric, bool metric_no_group,
goto out;
}
{
struct metricgroup_iter_data data = {
.fn = metricgroup__add_metric_sys_event_iter,
.data = (void *) &(struct metricgroup_add_iter_data) {
.metric_list = &list,
.metric = metric,
.metric_no_group = metric_no_group,
.m = &m,
.ids = &ids,
.has_match = &has_match,
.ret = &ret,
},
};
pmu_for_each_sys_event(metricgroup__sys_event_iter, &data);
}
/* End of pmu events. */
if (!has_match) {
ret = -EINVAL;
@ -1193,8 +1249,6 @@ int metricgroup__parse_groups(const struct option *opt,
struct evlist *perf_evlist = *(struct evlist **)opt->value;
struct pmu_events_map *map = perf_pmu__find_map(NULL);
if (!map)
return 0;
return parse_groups(perf_evlist, str, metric_no_group,
metric_no_merge, NULL, metric_events, map);